Type-writing machine.



B. #0; STIGKNEY. 7 TYPE WRITING MACHINE.

APPLICATION FILED JAN. 24, 1912. I 1,1. 0%269. I Patented June 16, 1914.

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Sim 064M601 B. G. STIGKNE Y.

TYPE WRITING MACHINE. APILIOATION'IILED JAN. 24, 191-2.

Patented June 16, 1914.

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E'vvumtoz I P l I 1 l .B. '0. STIOKNEY. TYPE WRITING MACHINE.

APPLICATION FILED JAILM, 1912.

Patented June 16, 1914.

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qllL L m MN O 544m wifoz UNITED STATES EURNHAH c. 3'1ICKNEY, 'OF ELIZABETH,

PATENT OFFICE,

unw JERSEY, .essrenon 'ro unnnnwoozo 'rvrnwnrrnnoomranv, or new YORK, N. Y., A eonceonario'n or DELAWARE.

'rYrE-wmrme MACHINE.

Specification of Letters Patent.

Patented June 16, 1914.

Original application filed April '1?, '1903, Serial No. 153,024. Renewed March 3, 1909, Serial No; 401,022. Divided and this application filed January 24, 1912. Serial No. 673,130.

To all whom it may concern:

Be it known that I, BURNHA-M C. STICK- xnr, a cltizen of the United States,residing in Elizabeth, in thecounty of Union and State of New Jersey, have invented certain new and useful Improvements in Type "Writin Machines, of which the following is ing is always in view and especially to those of the front strike-- class.

This application, which is a division of my application No. 481,022, filed March 3, 1909, which 'is a renewal of my application No. 153,024, filed April 17, 1903, relates to cscapementmechanism a the paper carriage, which is movable in letter-feeding direction, being for this purpose mounted upon a frame. Said frame is hinged to the main framework of the machine so as to permit 'th'e'irame and carriage to swing or tilt upwardlyt,

thereby giving access to the underside o the platen and carriage, as well as to that portion of the typewriter mechanism which lies below the carriage, for purposes of inspection, cleaning, repair, manipulation, etc.

The typewriter keys control the feeding movement of the carriage, and suitable provision is made for connecting the keys,

' which are mounted on the main frame of themachine, to control the carriage, which is movable upand oif from the machine. In the preferred form of the invention, the carriage-driving spring barrel is mounted on said hinged frame .to swingup with the carriage; and the letter feeding dogs, wh1cl1 engage the carriage rack to restrain the I same, are also mounted onsaid swinging kirame; provision being'made whereby the keys may operate said dogs when the frame and carriage are swung or folded down lnto closed relation with the main framework of the machine.

r In my said application No. 481,022, filed March 3, 1909, I claim the arrangement of ribbon spools on said hinged-framefor the ,urpo-se of bringing the spools up into accessible position when desired, and of bringing them to a position down out of the way 1n the rear portion of the machine below the carriage, when the carriage and frame ape folded down. In my application No. 4.1;),930, filed February 3, 1909, (a division ofNo. 153,024) I claim broadly the platenshifting mechanism and the carriage disclosedherein; and in my application No. 729,273, filed November 4, 1912, (a division mechanism for the paper-carriage,

to the feature of the tension mechanism for the carriage as being mounted to movebodily with said carriage into and out of cooperative relation with the type-bars, and also of the escapement mechanism as being similarly mounted and movable. Other objects and advantages will hereinafter appear; and 'my invention further consists in certain combinations of devices. features of construction, and arrangements of parts, which will be hereinafter fully'described and particularly pointed out in the concluding claims: y

In the drawings forming part of this specification, Figure 1 is a longitudinalsectional elevation of a front strike writing machine embodying my improvements, one type action being shown in printing'position, and the carriage being shown in full lines in normal position, and in dotted lines when tilt-ed up to render the ribbonfspools accessible to the operator; the position of being also indicated by dotted lines below the full-line position. Fig. 2 is a plani and Fig. 3 is a sectional front view ofthe machine. 1

The framework of the machine comprises side walls 1 whose lower portions maybe connected to form a base, and a top plate 2 supported upon said walls; a portion of the top plate being depressed, at '3, to make roomfor the paper-carriage and its supports. Forwardly extending type bars 4 are pivoted at their rear ends upon a 6, and strike rearwardly against acylindrical or other platen 7. The segment-is rad ally slotted at 8 to receive the'.type-bar hubs; and preferably boththe segment and of No 153,024) I claim the case-shifting My present application is directed broadly the platen when capitals are being writtencurved fulcrum-rod 5 mounted in a segment the fulcrum-wire cline upwardly and rearwardly, so that the types may strike upon the front side of the platen at a point a little above the horizontal plane of the case typ'e 10, the former being uppermost 3 when the the "platen axle; and arms 19 extending type bar zisjin printing position, although within the scope of my improvements, and the type-bars may be otherwise mounted. The type bars may be operated by any suitable means, as for instance pulllinks 11' and forwardly-extending levers 12 connected to the links and bearing at their forward ends keys 13; saidkey-levers being fulcrumed at their rear ends upon a transverse bar 14, and being provided with returning springs 15.

The platen 7 may be mounted by means of an axle l6iupon a carriage whihh may be of any suitable construction, and is illustrated as comprising side bars 17, united at their rear ends by a longitudinal bar 18, said side bars extending rearwardly from downwardly and rearwardly from. the

. platen axle, and connected 'at their lower ends by a longitudinal carriage-guiding bar 20. Upon a forwardly protruding boss 21 about midway of said bar 20 is mounted a carriage roll 22, which runs upon a horiz'ont-alrail 23, provided upon itsrearside with a dependingfflange 24; ,Secured by screws 25 upon the rear sideof this flange are upstanding arms. 26, whieh "support a cylindrical rail 27. 'The carriage bar 20 is bored longitudinally to slide along upon.

this-rail 27, .andis also recessed upon its under side at 28 to pass the arms 26, A finger 29,-secured by the carriage-roll screw 30, hooks under the front edge of the rail 23, thereby cooperating with the bar 20 to.

. hold the carriage upon the rails. A feeding-in roller "31. may be mounted in rear of the platen upon links 32 rising from ears 33 on the carriage-bar 20; andsaid links may. beprovided with rearwardly-t extending lugs 34-for receiving legs 35 of a paper-shelf 36. Fromthe front side of the bar 20n1ayv project forwardly and upwardly extending arms 37, upon whose for; ward ends may be hinged at 38 a bail consisting of a'pair of upwardly and forwardly extending arms 39 and a platen-scale 40 fixed upon the forward ends of said arms and provided with an apron '41 uponits v rear 'sidecontiguous't o the platen; the upper I edge of said scale' being' below the printing.

line' upon the platen, One or more pres-' sure-jrollers'42 may be mounted upon an axle .43 mounted at its ends in said arms 39 abeat michuay of their length. Any suitable springs may be provided for the "front and real:- r e v'ollersFQSofar as this relation may be reversed slipped off my present improvements are concerned, the carriage, paper-feedmg means and carriage-supportlng and guiding bars orralls may be of anyother desired construction: platen axis -iEach type-bar I is provided amt-ii: a low'er-ca se type 9 and an upper- The flanged rail 23, 24 forms part of 2 movable frame, whereby the paper carriagt is enabled not only to run in, letter-space be swung together up about said hinges and 84 tilted rearwardly to the dotted line position at Fig. 1, so as -to expose the underside of the carriage. ,Said supporting frame however, be otherwise formed and otherwise movably supported within the scope'of my lmprovements.

In rear of the type bars and below tlle platen are mounted upon an axle 48 a pair of ribbon spools 49, 50, said axle being-horn zo'ntal, and said spools being arranged on edge and side by side", The axle 48, which extends transversel" of the machine, thatv is, from side to si ethereof, or from left to right, is "mounted in and transfixes the lower'end of a forwardly and downwardly 'extendin'garm 51, preferably cast. integral with the rock-shaft 45, and having an elongated bossf52 for suitably supporting the axle 48. It will be perceived that when in normal position the ribbon spools are inaccessible to the operator, but that when the hinged frame is swung up to the dotted line position at Fig. 1, said spools are brought to an accessibleeposition, for corn venience in examining or adjusting or' attaching the ribbon, or of detaching or rction 3 of the top plate is preferably cleft, as zit-53, to'make room for the spools, which, in normal position dip below said depressed portion."

Forirotating the spools, I preferably use a pair ofipawls 54, 55, operated at every type stroke, and adapted to engage a pair of ratehet wheels 56,'associated with spools The latter may beslipped off and onto the axle 48,being retained by thumbnlltssofg and each ratchet wheel may be connected to its spool by acollar or other device 58, .so that one spool with its ratchet may turn upon the axle'independently of the other spool audits ratchet. If desired, the member 58 may be *splined to the spool,

as at '58, so as to permit the latter to be placing the spools, etc. The depressed porthejribbon .120

'part of a ribbon vibrator, being connected at their lower ends by a cross-arm 64, whereby they are supported upon a bent arm 65, which extends backwardly beneath the rail 23 and at its rear end ispivoted by'means of a rock-shaft 66 upon-bearing-arms 67 and 68, both of the latter projecting forwardly from the rock-shaft 45 of thecarriage-supporting hinged frame, and arm 67 overlying the spool-carrying arm 51. By this vibrator, the ribbon maybe lifted to cover the printing point at each impression, as at Fig. and depressed to uncover-the same; and since the vibrator is mounted upon the hinged frame, .it is carried up with the latter when .tiltedto the dottedline position at Fig. 1, thus facilitating. the reeving of the ribbon from the spools over the guiding arms 62 and 63. Said ribbonvibrator is operatively connected to car-.-

riage-feeding mechanism also mounted .upon the hinged carriage-supporting frame and cooperating with a rack 69 on the carriage, said feeding mechanism comprisinga detent dog 70 and a feeding dog 71. the latter being normally in engagement with the rack. These dogs are mounted upon a rocker or rock-shaft. '72,

mounted upon ears 7 3 and 74 upon the rock- 2 s provided,

shaft 45; and said rocker? with an operating arm 75 which curves downwardly and rearwardly beneath the rock-shaft 45, in position to be operatedby a finger T6 projecting forwardly from the upper end of an upstanding rocker-armTZ,

- fixed upon a rock-shaft 78 mounted transxversely in the. base of the machine.

roclt shaft 78 carries near-its ends forwardly directed arms 79,'fron1'wh1ch is suspended,

by means of rods 80. a universal bar 81,

extending transversely beneath all of'the typeeoperating key-levers 12, so as to be.

operated at each type stroke. The universal bar and rocker 78 may be returned to normal;

position by a spring 82'; and a returning spring 83 for the dog-rocker may be coiled about the shaft 72. The connection between the latter and the ribbon-viluator consists of.

an arm 84 mounted upon shaft 72, a pulllink 85 connected to said armjand extending forwardly, and an, arm 86 connected to said link and mounted upon the vibrator shaft 66. By this means, whenererthe dog-rocker Said is vibrated by-the keys, the vibrator is elevated to cause the ribbon to cover the printing point, and upon the return of the carriage-feeding mechanism to normalposition, said vibrator drops to permit the ribbon'to uncover the print'ingpoint.

The carriage may be propelled by a spring-barrel 87 (Figs. 2'and 3), mounted;

upon an arm 88, projecting laterally and downwardly from' the sidebar 44 of the hinged carriage-supporting frame; and a strap 88 may connect the spring-barrelto the carriage. By mounting both the spring barrel and. the carriage-feeding mechanism upon the hinged fraine,@tl1e latter. is permitted to swing freely up and down, without liability-of deranging the carriage-controlling' devices, which always maintain: their proper relation to the carriage, al though by reason of the arm 75 swinging away from the finger 76, the latter cannot .of courseoperate the feeding mechanism when the carriage is tilted up.

The ribbon-feeding pawls 54 and 55 may be pivot-ed at their rear ends-upon arms 89 upstanding from the universal-bar rocker 78, and provided with drai'v-springs 90 conneeted at their lower ends to the pawls and at their upper ends to the arm 89, whereby the pawls may be held in engagement with the ratchet wheels 56; each pawl being provided with a stop 91, to prevent undue ap 'ward' movement thereof when the ratci'ae.

wheelsare swungaway from the pawls at thetilting' up "of the carriage. Behind the pa-wlsis mounted in the side walls of the -machine a horizontal shaft 92, having an operating handle 93, and carrying wings 94.

the latter being shown as lifting anarm 96 projecting-rearwardly from the pawl so as to hold the toothed end of the latter down out of engagement with its ratchet wheel. The shaft maybe rocked to depress the wing and allowsaid pawl to re engage "the ratchet-wheel, while the other lid-ll wing 94 rises and lifts an arm 97 provided upon the other pawl, and throws the latter out of engagement, whereby the feed of the ribbon is reversed.{ Any other suitable rihhon-feeding and reversing ribbon may be employed, and the-ribbon spools may be otherwise disposed within the limits of my invention. Preferably advantage is also taken of the hinging of the carriage-stipport, to enablefthe latter to be shifted up and down to enable different types to print.

Norm-ally therarriage and. platen are: in an elevated position, as seen in full lines at Fig. 1, thereby enabling the lower-case types 9 to printpwhileby depressing the carriage and platen (the'latter in its depressed position being indicated by a dotted circle at Fig.1), the upper-ease types 10 are enabled to print. The downward movement of the carriage islimited by a pair of adjustable stops 98, and its upward movement by a pair of stops having the form of hooks 99 which overhang lugs 100 projecting forwardly from the carriage-supporting rail 23at the endsithereoi'. A spring 101,-Fig. 1, sustains the carriage and hinged frame normally against the hooks 99g said spring being caughtat its upper end over a pin 102 proectingfrom the side wall of the machine, and at its lower end being caught in. a' lever 108, which is'fulcrumed atits rear end upon a shoulder-screw 104 and is provided between its ends with avertical thrust-rod 105, which is guided at its upper end in an eye 105 formed in the depressed portion 3 of the top plate, and contacts with a boss formed upon the under side of the side arm 1% of the hinged frame, thereby sup porting the latter. A stop-pin 108, overlying" the lever 103, prevents undue upward movement of the latter when the carriage is tilted up. The lever 103 is provided with a key 104, by pressure upon'which the pull of the spring 101 may be overcome, and the lever 103 and rod 105 carried down, permitting the carriage and hinged frame to drop and rest upon thescrew-stops 98.

The hooks 99, which extend through eyes 105 in the top plate 3, are fixed upon a rockshait 106, whereby they may be vibrated forwardly to release. the hinged frame and carriage, to permit the latter to be tilted up; said rockvshaft being provided with a returning spring 107, and being mounted-in eccentric-nuts 108, by the adjustment of which the hooks 99 may be elevated or lowered so as to position-the platen with ac curacy. it will be'noted that the hinge 46 of the carriage-supporting frame-is in rear of and below theplaten, so that the latter may shift downwardlvand forwardly in a direction agreeing substantially with the tip of the type-bar segment 6, the forward movement being in this instance, however, very sli ht.

71.1] Fig.3 it will be noted that the ribbon comes up in direct paths from the spools to the front [side of the platen, and that the ribbon-guiding arms 60, 61 are widely separated, so as to expose to view somewhat more than one of the major divisions upon the platen scale, so that at least one of the whole numbers marked upon the platen scale is always visible to the operator between said-arms, and he can readily deter mine at what point the carriage is standing, an index 109' being preferably formed upon the'cross-barrfi t for this purpose.- The type-guide 'ha's 'ype-opening 110 above the id arms 111 and 112 extendlfE- j'downwardly from said- 'Ljopening in a manner toleave exposed all of theplaten scale which-1's vis ble between the idi Gt aa'nd 61; saldtypjegui din 9' arms being connected at them.

p 115. At Fig. 1 it Will be seen by a bar 113, and the type-guiding frame belng secured upon the depressed portion of the top-plate 8 by arms 11-1- and screws that the typeguiding frame is tipped rearwardly and substantially parallel. with .the plane of the type-bar pivots.

Wide. variations in the construction and operation Qof the dilierent mechanisms may be resorted to within the scope of my inven tion; and portions of the improvements may be. used without others.

I do not claim to be the first inventor of an up-and-down shifting platen. Certain of my improvements, however, are applicable where the platen shifts up and down, the exact direction of such movement being immaterial. In using the term vertically in such claims as cover said improvements, I intend to include all movements in an upand-down direction.

Having thus described my invention. I claim: V

1. In a typewriter, the combination of a platen carriage adjustable or shiftable bodily into and out of cotiperative relation to the type bars, a carriage-tension mechanism for actuating said plat-en carriage, said carriagetension mechanism shift-able with said carriage,.and an escapement-mechanism for said carriage, said escapement mechanism comprising separable members, one thereof adapted to be actuated normally by the typewriter keys, and the other thereof shiftable ith the platen carriage, said last mentioned means operating to hold the platen cai'riage against movement under the action of the carriage-tension-device when said carriage is shifted or adjusted to a non-working position.

2. In a front-strike typewriter, a carriage bed, a traveling carriage thereon. said oarriage and bed being movable to bring the carriage into cooperative relation with the type bars, escapement mechanism having hey-actuated means to maintain a cooperative relation to said platen carriage, and a carriage-driving spring also mounted on said bed to move therewith.

3. In a front-strike typewriten a carriagebed, a traveling carriage thereon, said carriage having a feed-rack, and movable 'into and out of working position, an escapement member on the carriage-bed, a rocking tappet cooperating with said 1118111b61,tl1 latter moving with the carriage-bed into and out of position to cotiperate with the tappet, keyactuated means for operating said tappet. and a carriage-driving spring also mounted on said bed to move therewith.

In a front-strike typewriter, a platencarriage having .a rack, aracking frame, a dog-carrier on said rocking frame, a tappet incooperativ'e relation with the dog-earner,

"means f r adiusting the D] aten carria e. and mo 1o key levers, a. spacing key and lever, anniversal bar cooperating with the key-levers and spacing-lever, a carriage-driving spring, the

rocking-frame being liftable together with t the platen-carriage'and driving spring, and

means between the 'universal'bar and the rocking frame for actuating the tappe-t at different points in the elevation of the platen carnage.

. 6. In a typewriter, the. combination with key-levers and type-bars operated by said key-levers,'of a. platen, a carriage, said platen normally in the path of said type-bars and movable bodilywith said carriage out of said path, propelling mechanism for moving the platen in a direction lengthwise thereof and bodily movable with the platen, and escapement mechanism cooperating with the platen and the key-levers when the latter are moved to operate the platen for letter spacing.

7. In a typewriter, key-levers, type-bars operatedby said levers, aplaten, a carriage, said platen normally in the path of said type-bars and bodily movable with said carriage out of said path, propelling mechanism for moving the carriage in one direction and bodily movable therewith, and escapement mechanism alsobodily movable with the carriage and cooperating'with the key-levers 40 and operating to feed the carriage only when the latter is in its normal posrtion 8. In a typewriter, the combinationayith a support, of a carriage mounted on sa d support, a carriage bed arranged on the support along which the carriage is adapted to travel and movable bodily out of said pos1t1on,keylevers. a rack-bar movable with the carriage, an escapementmechanism havlng a sprlngactuated drum tending normally to force the carriage in one directionand movable with the carriage bed, an arm pivotally held to the carriage bed, a spring normally forcing the arm in one direction, pawls carried by the arm so as to be moved transversely of the '55 rack-bar, and means for operating the arm to permit the carriage to have a step-by-step movement. I

9. In a typewriter, the combination w th a support, of a carriage normally in position to cooperate with the type bars, a carriage I bed arranged on the p the carriage is adapted to travel and mov able bodily out of said position, a rack-bar movable with the carriage, an, escapement mechanism having spring-actuated means a step-by step movement.

support along which tending normally to force the carriage in one dII'ECtIOII, an arm pivot-ally held to the carriage bed, means carried'by the arm 'so as to be-moved transversely of the rack-bar, and meansyvindependent of and separable from the arm for operating thearm only when in a normal position to permit the carriage to have a step-by-step movement.

10. In a typewriter, the combination with a shiftable. carriage bed, of a carriage nor-- mally in position to cooperate with the type-bars, said carriage movable along the 'bed,'said carriage and bed both bodily movable out of said position, a raclrbar'movable with the'carriage and provided with 30 teeth on the under surface thereof, means normally forcing the carriage in one direction, an arm pivotally held'to the carriage bed, means carried by the arm and adapt ed to engage the rack-bar to permit a step- 35 Y by-step movement to be givento said carriage, key-levers, and means separable from the said arm when the carriage bed isshifted and. operatively connected to the key-' levers to operate said arm when the carriage bed is in its normal position only. 11. In a typewriter, the combination with key levers and type-bars operated thereby, of 'a platen, a carriage, said platen being normally in the path oflthe type-bars, and movable bodily with the carriage out of said path, propelling mechanism for moving the platen in a direction lengthwise thereof and bodily movable with the platen, and escape mentmechanism' cooperating with the 1 platen and key-levers when the latter are moved to operate the platen for letterspacing. I A A 12. In a typewriter, the combination with a support, of a carriage normally inposition to cooperate with the type-bars, a carriage-bed arranged on the support along which the carriage is adapted to travel and movable bodilyflout of position to cooperate with the type-bars, a rack-bar'movable v vfor operatingthe-arin only when in'a normal position to permit the carriageto have 13. In a typewriter, the combinationof a platen-carriage and platen bodily movable into and out of cooperative relation to the type-bars, a tension-mechanism for said carriage, and an escapement-mechanism for- 5 'said carriage, said escapement-mechanism comprising means upon the framework of the machine'- to be operated the "type writer-keys, and also comprising means to hold the platen-carriage against, movement 139 

